[rrd-developers] RRDTOOL 1.4.4 fetch with RRDCACHED_ADDRESS

[Tobias Oetiker]

Hi Swami,

Nov 18 swami wrote:

> Hi,
>      Am trying to get my rrdtool work with RRDCACHED and am facing fetch issue where looks like its not able to locate the file with the relative path.
>
>      Here is what i do, in steps
>
> 1)    /usr/local/third-party/rrd/bin/rrdcached -l 127.0.0.1 -w 600 -b /var/stats/rrd_data
> 2) set RRDCACHED_ADDRESS
>        export RRDCACHED_ADDRESS=127.0.0.1
> 2) create rrd
>        /usr/local/third-party/rrd/bin/rrdtool  create /var/stats/rrd_data/remote_peer_data/rp4.rrd -s 3\
>        DS:AccelTrafficBytesIn:COUNTER:60:0:U\
>        RRA:AVERAGE:0.5:1:1200\
>        RRA:MAX:0.5:1:1200\
>        RRA:LAST:0.5:1:1200\
> 3) update some values
>        /usr/local/third-party/rrd/bin/rrdtool update remote_peer_data/rp4.rrd N:10
>        /usr/local/third-party/rrd/bin/rrdtool update remote_peer_data/rp4.rrd N:10
>         /usr/local/third-party/rrd/bin/rrdtool update remote_peer_data/rp4.rrd N:10
>
> 4) telnet localhost 42217
>    PENDING rp4.rrd
> 3 updates pending
> 1290128668:10
> 1290128672:10
> 1290128673:10
>
> 4) fetch now
>    /usr/local/third-party/rrd/bin/rrdtool fetch remote_peer_data/rp4.rrd AVERAGE
>    ERROR: opening 'remote_peer_data/rp4.rrd': No such file or directory
>
>    /usr/local/third-party/rrd/bin/rrdtool fetch rp4.rrd AVERAGE
>   ERROR: opening 'rp4.rrd': No such file or directory
>
>    /usr/local/third-party/rrd/bin/rrdtool fetch rrd_data/remote_peer_data/rp4.rrd AVERAGE
>    ERROR: rrdcached: No such file: /var/stats/rrd_data/rrd_data/remote_peer_data/rp4.rrd.
>
>    Is there an issue with the fetch or am i missing something.
>

the problem is that you are using a network socket to access
rrdtool this will cause local commands like fetch to act
differently when resolving patch names ...

use a unix domain socket instead or cd to the root location of the
daemon

cheers
tobi

>
> Regards
> swami

-- 
Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland
http://it.oetiker.ch tobi at oetiker.ch ++41 62 775 9902 / sb: -9900